The Methods of Pissarro: Filling the Gaps

My next experiment followed Jonathan Stephenson's Paint with the Impressionists (1995) instructional Number 3: The Rowan Tree (after Pissarro). According to the book, Pissarro's approach includes:

• Starting with a white canvas
• Ignore all aspects of drawing
• Avoid specific outline and detail
• Observe color and tone as mass and occupied spaces
• Use small brushstrokes and progressively fill in gaps working layer upon layer
• Long periods or working and re-working

Here's my effort after executing the approach with a nod towards Pissarro:

Souvenir Art: On the Beach Copyright James E. Martin 2011

Although there was a bookplate image to work from in the book, this image is very different than the bookplate and comes from within me rather than from direct observation of nature. This is increasingly a form of Expressionism using Impressionism methods. The title reflects what I see.